I am the project manager for the design and development phases of a new missile

Question

I am the project manager for the design and development phases

of a new missile program for the Department of Defense. I have

hired your team as a software design sub-contractor. Your contract

requires you to design the program logic for a simplified

Sidewinder guidance control system. The Sidewinder is an air-to-air

missile, and was the first to be effective in its mission. The

reason for its success is its guidance control system. The real

Sidewinder guidance control system is complex (see

http://science.howstuffworks.com/sidewinder6.htm for an interesting

description of the real thing if you want), but I want you to

design a simplified version of it for a new variant of the missile

that my company has to introduce.

Basically, your software will receive a signal indicating that a

target has been sighted. (It is obtained from the infrared

signature of your target, but all you need to know is that you

receive a signal.) You will also know that the signal is coming

from a particular angle from the missile's current course. If the

target is off to the missile's left, you will receive data that

tell you that it is x degrees from the current heading of the

missile, and the number will be negative. If the target is off to

the missile's right, you will receive data that tell you that it is

x degrees from the missile's current heading, and the number will

be positive. You receive these data points every second.

Based on what you know about how far off track you are, you send a

signal to the servo assembly that controls the fins on the missile.

The signal that you send is proportional to the angle of error

between the missile's heading and the target. You will divide the

angle of error by 10, and round it to the nearest whole number. For

example, if your target is 22 degrees off to your right, you will

send a value of +2 to the servo assembly controller. If your target

is 36 degrees off to your left, you will send a value of 4 to the

servo assembly controller.

Notice that I am only asking you to handle yaw (the side-to-side

motion of the missile). Based on your performance on this project,

I may contract with you to handle the pitch (up and down) control

software. It would work similarly

Explanation / Answer

Basically there are five functions in the program i have used which execute as we call.

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